Coal-gas-generating apparatus.



H. A. CARPENTER & D. D. BARNUM. co'AL GAS GENERATING APPARATUS. APPLICATION FILED SEPT. 17,1914.

LHAQQEEE. Patented Dec, 29 19 HGJQ FIG.2, 1

FIG.3.

WITNESSES UNITED STATE-s PATENT ossiou.

HENRY A. CARPENTER, 013 SEWICKLEY, PENNSYLVANIA, AND DANA D. BABNUM, OF WORfiE-STER, MA$SAGHUSETT$ ASSIGNORS TO RIE'EB-CONLEY MANUFACTURING COMIANY, OF PITTSBURGH, EENNSYLVANIA, A CGRPOEATION OF NEW JERSEY.

COAL-GAS-GENEBATING APPARATUS.

Specification of 'Lctters Eatcntl Original application filed July 24, 1913, Serial No. 7801396. Bividcd and this application filed September 117, 1914, Serial No. 862,188.

To all 20. mm it may concern be it known that we, HENRY A. CARPEN- Tnu, a resident of Seu'iclzley, Allegheny county, Pennsylvania, and Dana D. Bauson, a county. lvlassachusetts, citizens of the United States, have invented certain new and useful improvements in Coal-Gas-Gencrating Apparatus. of which the following is a specification, the same being a division of our application tiled July 2%, 1913, gerial No. TSOQSG,

In the manufacture ol gas and coke by distilling coal in highly heated retorts, the volatile matter driven off-in. the form of gas, and this gas carries in suspension line particles of ash and carbon which tend to lodge in the passages or conduits through which the gas. is conducted from the retorts. Continued or undisturbed accumulation of this deposit results in so contracting the passages as to materially retard the operation and decrease the ellicieucy of the apparatus. in addition to deposits of the character stated, condensation resulting from cooling produces deposit in the form of pitch, tar or light oils. Frequent and thorough cleaning of the passages is necessary to hold in check these obstructing and stoppage-formingaccumulations. The no cessity for ellicient cleaning is particularly present in those forms of. apparatus in which a relatively large number of retorts are operated simultaneously for the production of arelatively large volume of In such apparatus the retorts are operated to best advar tags by" discharging and chargin each retortv at a different time interval from that of discharging and charging the next adjacent retort or rotor-ts, whereby the bench is maintained at substantially uniform and highly ellicient distilling ten perature regardless of the introduction of cold charges of fresh coal. If all the retorts were discharged and charged simultaneously the operation would be intermittent, and the resulting wide variations of temperature would seriously impair the rctorts and other structural parts and would re-' sult in the production-of gas v-r ing in quality between the inception and the completion of the simultaneously preceding distillation of all the charges. By alternatresidcnt of Worcester, Worcester ,mg the cl urging and discharging of the several rotor-ts, and by segregating each fresh charge from another fresh charge, a suhstantialh: oven temperature of best elliciency is maintained, the composite output cf't'he rctcrts of uniform uualitv, and the operation of the apparatus is continuous. While no novelty is claimed herein for thus operating a gas bench which contains a relatively large number retorts, such operation referred to as emphasizing the uuportai'ue of providing adequate means for maintaining passages fully open and clear of stoppa ylorining deposits in order that Th, retorts and their outlets may operate uniformly and without interfering with the carefully ore: rranged time inter- \als ll discharging and chai'gin liming thus luiel y outlined iicularly as applied to generating apparatus of relatively large capacii" or i: 2 ench con-. succession of eight reinto same standpipe,

oil

uniiuteuauve clean passages for the gas up to the point of its actual delivery into the stand pipe. ilrllinarilyx the gas dis charges from ea h retort through a lateral passage 4,

* conduit which varies in length i. or substanuiportunity for -i'orn1ing deposits. readily accessible and if accunuzla o be prevented each passage must in: cleaned from one extremity to the other. 'fiuil in order that such cleaning may he ind without appre- Cizllilf' iutorl'v l Ah the continuous operation above refor ed to. communication with the stzsmhpipo must he closed. with the entire length ol the muuuunimting passage accessible from the retort. To accomplish this. each pas ;IL is provided with a valve which loco u at its stand-pipe extremity, that with valve closed the passage may be cleaned in end to end. The valves are of com o utli'ziul for closing communication between stand-pipe and retortswhen discharging and vcharging the latter, and the entire length of each passage may be cleaned as frequently as necessary during Such pasinvention is not concerned with with both rows-served pipe or ofl'take 4, ora separate stand-pipe 4 these discharging and charging intervals. While it is necessary to keep down deposit accumulation in the stand-pipe, the present that problem, as heretofore indicated the primary purpose being to provide structed delivery of the. gas from the retorts into the stand-pipe.

In the accompanying drawings, Figure 1 is an elevation of a portion of a bench or benches of tion. Fig. 2 1s a sectional elevation of the stand-pipe, retort mouth-pieces, and valved connecting passages. Fig. 3'is a sectional plan taken on the broken line 3 of Fig. 2. eferring to the drawings, 2 designates a gas bench, and 3, are the retorts, as here shown the latter being arranged one above the other in vertical succession. Two rows of retorts may'be arranged relatively close to each other as at the by the single standmay be'provided for eachrow as at the right hand of Fig. 1. Each retort is in a lateral conduit 5 which is usually disposed horizontally, and its length dependelfect a portion or continuation of the retort.

lateral ing upon the space intervening between the retort and the stand-pipe, the latter being in When so formed the conduit consists of a tubular extension of the mouth-piece 6,, being located adjacentvto the open end of the latter which is closed by. the usual door 7, here shown only conventionally. The outer extremity of the conduit-forming to or through an upright wall 40 ture lateral extension of each mouth-piece is open of the standpipe, as shown in Fig. 2, and provides a seat .8 for a valve 9, so that when this valve is closed the laterally extending conduit,.which is open at its inner end through a vertical wall of the retort or mouth-piece,"is fully .accessible through the latter for cleaning from end to end without appreciably interrupting the operation of the apparatus. T "e valve as here embodied opens inwardly,

being carried by the crank arm 10 ofan op- 1. The combination of a retort having a 2 door closed opening, a stand-pipe, a gas con- Y for free and unob-- gas retorts embodying the inven- I set located to render stand-pipe,

left hand of Fig. 1,

separate. communication with the stand-pipe through 4 tort mouth-piece having a door-closed openmg and an otl'set located inwardly from the door-closed opening and in communication and a valve for the oilthe entire length of the with the stand-pipe,

offset accessible from the mouth-piece for cleaning when the valve is closed.

3. The combination of a plurality of openend gas'retorts, adoorfor each retort, a

a laterally extending gas conduit for each retort and at one end open thereto inwardly from-its door-closed end, the opposite ends of the conduits open to the stand-pipe, and a valve for each conduit located at the stand-pipe end thereof with the entire length of each conduit accessible from its retort for cleaning when the valve is closed.

4.- The combination of a plurality of gas retorts, a mouth-piece for each retort form ing an end continuation thereof, eachmouthpiece having a door-closed opening and a conduit-forming ofiset located adjacent said opening, a stand-pipe, said conduit-forming offsets extendingto andzincommunication with the stand-plpe, and a valve for each ofiset located to render the entire length of such offset accessible through its mouthpiece for cleaning when thevvalve is closed.

5. The combination of a bench having a series of retorts therein arranged horizontally at dilferent elevations, mouth-pieces- .one for each retort-projecting from the. bench, each mouth-piece having a doorclosed opening, a stand-pipe located at the exterior of the bench, a series of laterally extending conduits-one for each mouth-piece, each conduit open at one end to its mouthpiece at a pomt adjacent the door-closed opening of the latter, the opposite ends of the conduits separately open to the stand pipe whereby the latter comprises an up-.

HENRY A. CARPENTER. DAN A D. BARNUM.

Witnesses for Henry A. Carpenter:

- ADA M. Srmnm, M. J. Smna,- Witnesses for Dana D. Barnum:

NEILIE Wmmm,

KENNEDY, r. 

